<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="分类名称" prop="categoryName">
        <el-input v-model="queryParams.categoryName" placeholder="请输入分类名称" clearable @keyup.enter.native="handleQuery" />
      </el-form-item>
      <el-form-item label="科目名称" prop="subjectName">
        <el-input v-model="queryParams.subjectName" placeholder="请输入科目名称" clearable @keyup.enter.native="handleQuery" />
      </el-form-item>
      <el-form-item label="章节名称" prop="name">
        <el-input v-model="queryParams.name" placeholder="请输入名称" clearable @keyup.enter.native="handleQuery" />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plain icon="el-icon-plus" size="mini" @click="handleAdd" v-hasPermi="['qbms:qbmsChapter:add']">新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="success" plain icon="el-icon-edit" size="mini" :disabled="single" @click="handleUpdate" v-hasPermi="['qbms:qbmsChapter:edit']">修改</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="qbmsChapterList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="编号" align="center" prop="id" width="80" />
      <el-table-column label="分类名称" align="center" prop="categoryName" />
      <el-table-column label="科目名称" align="center" prop="subjectName" />
      <el-table-column label="章节名称" align="left" prop="name" />
      <el-table-column label="图标" align="center" prop="icon">
        <template slot-scope="scope">
          <image-preview :src="scope.row.icon" :width="50" :height="50" />
        </template>
      </el-table-column>
      <el-table-column label="排序" align="center" prop="sort" />
      <el-table-column label="创建时间" align="center" prop="createTime" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button size="mini" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)" v-hasPermi="['qbms:qbmsChapter:edit']">修改</el-button>
          <el-button size="mini" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)" v-hasPermi="['qbms:qbmsChapter:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination v-show="total>0" :total="total" :page.sync="queryParams.pageNum" :limit.sync="queryParams.pageSize" @pagination="getList" />

    <!-- 添加或修改题库章节对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="所属科目" prop="categoryId">
          <el-cascader v-model="form.subjectId" placeholder="请选择分类" :options="qbmsSubjectTreeselect" filterable :props="{ value: 'id'}" :show-all-levels="false" @change="subjectChange"></el-cascader>
        </el-form-item>
        <el-form-item label="名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入名称" />
        </el-form-item>
        <el-form-item label="图标" prop="icon">
          <image-upload v-model="form.icon" />
        </el-form-item>
        <el-form-item label="排序" prop="sort">
          <el-input v-model="form.sort" placeholder="请输入排序" type="number" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listQbmsChapter, getQbmsChapter, delQbmsChapter, addQbmsChapter, updateQbmsChapter } from "@/api/qbms/qbmsChapter";
import { treeselectQbmsSubject, getQbmsSubject } from "@/api/qbms/qbmsSubject";

export default {
  name: "QbmsChapter",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 题库章节表格数据
      qbmsChapterList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        userId: null,
        deptId: null,
        categoryId: null,
        subjectId: null,
        bookId: null,
        name: null,
        icon: null,
        brief: null,
        sort: null,
        categoryName: null,
        subjectName: null,
        bookName: null,
        status: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        subjectId: [
          { required: true, message: "请选择所属科目", trigger: "blur" }
        ],
        name: [
          { required: true, message: "章节名称不能为空", trigger: "blur" }
        ],
      },
      // 科目树结构选项
      qbmsSubjectTreeselect: [],
    };
  },
  created() {
    this.getList();
    this.getSubjectTreeselect();
  },
  methods: {
    /** 查询题库章节列表 */
    getList() {
      this.loading = true;
      listQbmsChapter(this.queryParams).then(response => {
        this.qbmsChapterList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },

    /** 获取科目树结构选项 */
    getSubjectTreeselect() {
      treeselectQbmsSubject().then(res => {
        this.qbmsSubjectTreeselect = res.data;
      })
    },

    /** 科目改变 */
    subjectChange(data) {
      getQbmsSubject(data[1]).then(res => {
        let subject = res.data;
        this.form.categoryId = subject.categoryId;
        this.form.categoryName = subject.categoryName;
        this.form.subjectId = subject.id;
        this.form.subjectName = subject.name;
      })
    },

    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        userId: null,
        deptId: null,
        categoryId: null,
        subjectId: null,
        bookId: null,
        name: null,
        icon: null,
        brief: null,
        sort: null,
        categoryName: null,
        subjectName: null,
        bookName: null,
        delFlag: null,
        status: 0,
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: null,
        remark: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加题库章节";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids
      getQbmsChapter(id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改题库章节";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateQbmsChapter(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addQbmsChapter(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除题库章节编号为"' + ids + '"的数据项？').then(function () {
        return delQbmsChapter(ids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => { });
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('qbms/qbmsChapter/export', {
        ...this.queryParams
      }, `qbmsChapter_${new Date().getTime()}.xlsx`)
    }
  }
};
</script>
